If you work in a corporate environment, then most likely you already have some anti-spam filter set up on your Exchange server that helps your company to opt out of junk mail. However, you can considerably reduce the number of spam in your inbox by automatically dispatching most of unwanted emails into the junk folder and in this way turn a roaring junk steam into a tiny brook that one can comfortably live with. As a result, it is impossible to completely stop the delivery of junk messages. That is why, unluckily for all of us, they did not devise any mechanism that would ensure 100% protection against unsolicited e-mail. The email protocol was invented by scientists and it could never occur to them that someone would be sending all those car insurance quotes, loans, mortgage rates, pills and diets to unknown people.
The fact is that as long as junk mails has at least a tiny degree of effectiveness, say 0.0001%, spam will continue to be sent in millions and billions of copies. You will also learn how to keep your filter up to date, how to move a good message from the Junk folder and ensure that no legitimate e-mails gets there. This article explains how to configure Outlook Junk Mail Filter to block as many junk emails as possible.